<template>
  <div class="login-container">
    <div class="login-box">
      <div class="avatar-box">
        <!-- logo -->
        <img src="@/assets/logo.png" />
      </div>
      <!-- 登录表单 -->
      <el-form label-width="0px" class="login-form" :model="loginForm" :rules="loginRules" ref="loginFormRef">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username" maxlength="10"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password" type="password" maxlength="15"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { login } from '@/api'
export default {
  name: 'LoginIndex',
  data() {
    return {
      // 表单项
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 验证规则
      loginRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 重置表单
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    // 登录
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return ''
        const { data: res } = await login(this.loginForm)
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.$message({
          message: '登陆成功',
          type: 'success'
        })
        sessionStorage.setItem('token', res.data.token)
        this.$router.replace('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login-container {
  background-color: #2b4b6b;
  height: 100%;
  .login-box {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    .avatar-box {
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 130px;
      height: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      background-color: #fff;
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }
}

.login-form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
